Commit 3fd877d3 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: hda - Avoid possible race of beep on/off 



Call cancel_work_sync() when turning off the beep switch so that the
mute call is executed in a proper order.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 257dfb41

sound/pci/hda/hda_beep.c

+3 −2
Original line number Diff line number Diff line
@@ -165,12 +165,13 @@ static int snd_hda_do_attach(struct hda_beep *beep) 
int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)

{

	struct hda_beep *beep = codec->beep;

	enable = !!enable;

	if (beep == NULL)

	if (!beep)

		return 0;

	enable = !!enable;

	if (beep->enabled != enable) {

		beep->enabled = enable;

		if (!enable) {

			cancel_work_sync(&beep->beep_work);

			/* turn off beep */

			snd_hda_codec_write(beep->codec, beep->nid, 0,

						  AC_VERB_SET_BEEP_CONTROL, 0);